Re: how to best create a new slave server?

[Quanah Gibson-Mount <quanah@stanford.edu>]

--On Tuesday, October 18, 2005 12:22 PM +0200 Tomasz Chmielewski 
<mangoo@wpkg.org> wrote:

> What is the best and fastest way to create a slave OpenLDAP server?
>
> I mean, what should one do if he/she has a master OpenLDAP and several
> slaves, and want to create another slave?
>
> So far I was doing it more or less like this:
>
> 1) stopping OpenLDAP on the master,
> 2) tarring/bzipping /var/lib/ldap to ldap.tar.bz2,
> 3) adding a new replica to the slapd.conf on the master
> 4) scp-copying ldap.tar.bz2 to a new slave
> 5) uncompressing ldap.tar.bz2 to /var/lib/ldap on a new slave
> 6) starting OpenLDAP on the master
> 7) starting OpenLDAP on a new slave
>
> Which works perfectly, but I feel it's not just a "right way" (it would
> perhaps fail if OpenLDAP/database versions differ too much).
>
>
> So I tried a "better way":

Personally, I'd stop a replica with identical indexing to the new one, and 
then copy over all the *.bdb files and the BDB log files, then restart both 
the replicas (assuming syncrepl for replication).  This (on a large DB with 
plenty of indexing) is faster for me than slapcat/slapadd.  There is 
nothing "wrong" with this approach.

--Quanah


--
Quanah Gibson-Mount
Principal Software Developer
ITSS/Shared Services
Stanford University
GnuPG Public Key: http://www.stanford.edu/~quanah/pgp.html